Utilization of ultrafine solid waste in the sustainable cementitious material for enhanced performance
文献类型：期刊论文
| 作者 | Wang, Ying-fu1,3,4,5; Huang, Xiao1,2,3,4; Zhang, Shu-guang5; Ma, Wei1,3,4; Li, Jiang-shan1,3,4 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2024-02-23 |
| 卷号 | 417页码:15 |
| 关键词 | Waste materials Ultrafine phosphogypsum Ultrafine steel slag Compressive strength Hydration performance |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2024.135239 |
| 英文摘要 | Traditional Portland cement production processes are associated with significant carbon emissions, making them a contributor to climate change. Moreover, the disposal of industrial solid waste, such as phosphogypsum (PG), poses environmental challenges. To address these issues, this study investigates the feasibility of utilizing these waste materials to produce high-performance cementitious materials with reduced environmental impacts, namely composite solid waste-based regenerated ultrafine cementitious materials. The results demonstrate that ultrafine phosphogypsum (UPG) delays heat release during paste hydration. More UPG leads to the delayed heat release and better early strength. The compressive strength of 3 days can reach 27.23 MPa, which is 152.83% higher than that of 10.77 MPa in the control group. Hydration products in the ultrafine ground granulated blast furnace slag-ultrafine steel slag-ultrafine phosphogypsum (UFS-USS-UPG) system mainly include ettringite and C-S-H gel. Ultrafine powder boosts early strength due to its high reactivity and surface area. Later strength gains result from continuous UFS hydration and products interconnection. The pH changes of pastes in four stages, closely match heat release. A rapid pH drop coincides with the main heat release peak, the peak of the main heat release peak occurs at the lowest pH. The production of 1 t of ultrafine powder is cost-effective, approximately 200 RMB, while simultaneously reducing CO2 emissions by about 600 kg compared to the traditional Portland cement production. Overall, this study highlights the potential of these composite solid waste-based regenerated ultrafine cementitious materials as a sustainable and economically viable alternative to traditional Portland cement production, with significant benefits for early strength development and carbon footprint reduction. |
| 资助项目 | Science and Technology Major Project of Inner Mongolia[22YFHH0075] ; National Natural Science Foundation of China[52370156] ; National Natural Science Foundation of China[42007260] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001181217200001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40819]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Huang, Xiao |
| 作者单位 | 1.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 2.Guangxi Univ, Sch Resources Environm & Mat, Nanning 530004, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 4.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China 5.Guilin Univ Technol, Guilin 541004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ying-fu,Huang, Xiao,Zhang, Shu-guang,et al. Utilization of ultrafine solid waste in the sustainable cementitious material for enhanced performance[J]. CONSTRUCTION AND BUILDING MATERIALS,2024,417:15. |
| APA | Wang, Ying-fu,Huang, Xiao,Zhang, Shu-guang,Ma, Wei,&Li, Jiang-shan.(2024).Utilization of ultrafine solid waste in the sustainable cementitious material for enhanced performance.CONSTRUCTION AND BUILDING MATERIALS,417,15. |
| MLA | Wang, Ying-fu,et al."Utilization of ultrafine solid waste in the sustainable cementitious material for enhanced performance".CONSTRUCTION AND BUILDING MATERIALS 417(2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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